--> --> -->
 
 
<type 'exceptions.ValueError'>
Python 2.7.12: /usr/bin/python
Thu May 21 09:42:30 2026

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /usr/lib/cgi-bin/annotate5_PIL_teacher_demo.py in ()
     29 xy = coords.split(',')
     30 
=>   31 x = int(xy[0])
     32 y = int(xy[1])
     33 ###################################################################
x undefined, builtin int = <type 'int'>, xy = ['']

<type 'exceptions.ValueError'>: invalid literal for int() with base 10: ''
      args = ("invalid literal for int() with base 10: ''",)
      message = "invalid literal for int() with base 10: ''"